<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<input type="text" placeholder="请输入1-100之间的整数">
<input type="button" value="猜一猜" onclick="f()">
<h3>
    结果:<span></span>
</h3>
<script>
    let x = parseInt(Math.random() * 100) + 1;
    let i = document.querySelector("input");
    let s = document.querySelector("span");
    let count = 0;

    function f() {
        count++;
        if (i.value > x) {
            s.innerText = "猜大了!";
        } else if (i.value < x) {
            s.innerText = "猜小了";
        } else {
            s.innerText = "猜对了!一共猜了" + count + "次";
        }
    }

</script>
</body>
</html>